نتایج جستجو برای: 1 antitrypsin a1at
تعداد نتایج: 2753541 فیلتر نتایج به سال:
Lung cancer (LC) and chronic obstructive pulmonary lung diseases (COPDs; including emphysema and chronic bronchitis) share a common etiology. Despite the known associations of alpha1-antitrypsin deficiency (a1AD) with COPD and COPD with LC, few studies examined the association of a1AD alleles and LC. We hypothesize that heterozygous individuals who carry a deficient allele of the a1AD gene Pi (...
BACKGROUND Alpha-1 antitrypsin deficiency is under-recognized. We hypothesized that respiratory therapists (RTs) could help improve the detection rate of individuals with alpha-1 antitrypsin deficiency. The American Association for Respiratory Care (AARC) and Alpha-1 Foundation recently collaborated to create an online alpha-1 antitrypsin deficiency training program for RTs. This study aimed to...
primary antibody deficiencies are the most frequent primary immunodeficiency disorders. bronchiectasis as a feature of these disorders may be developed due to some factors such α-1-antitrypsin deficiency. in order to determine the prevalence of two common α-1-antitrypsin deficiency alleles (pi*z and pi*s) in iranian patients with antibody deficiency, this study was performed. the prevalence of ...
INTRODUCTION — Alpha-1 antitrypsin (AAT) deficiency is a clinically underrecognized inherited disorder affecting the lung, liver, and rarely skin. The characteristics of the pulmonary manifestations of this disorder will be reviewed here [1-4]. Extrapulmonary disease and therapy are discussed separately. (See "Extrapulmonary manifestations of alpha-1 antitrypsin deficiency" and "Treatment of al...
Most individuals carry two wild-type M alleles of the SERPINA1 gene which encodes a1-antitrypsin. 95% of severe deficiency of a1-antitrypsin is associated with the Z allele (Glu342Lys; denoted PiZZ in the homozygote), and with the retention and polymerisation of a1-antitrypsin within hepatocytes [1]. These polymers are contained within periodic acid–Schiff-positive, diastase-resistant inclusion...
The content of alpha-1-antitrypsin in the serum, alveolar lavage fluid, and alveolar macrophages of smokers and nonsmokers was studied. Bronchoalveolar lavage was used to obtain alveolar fluid and macrophages from normal volunteers, and alpha-1-antitrypsin and albumin were measured using the electroimmunodiffusion technique. The serum level of inhibitor was not different between the two groups,...
Alveolar macrophages lavaged from human lungs contain protease activity at an optimum pH of 3.0 and possibly a lesser peak of activity at pH 5.5. Protease activity measured at pH 4.1 is inhibited by purified alpha-1-antitrypsin. Fluorescent antibody studies of human alveolar macrophages showed that alpha-1-antitrypsin is present in normal alveolar macrophages. In addition, macrophages from a pa...
BACKGROUND The α(1)-antitrypsin 11478G→A polymorphism may be associated with attenuated acute α(1)-antitrypsin responses. It was hypothesised that patients with chronic obstructive pulmonary disease (COPD) and this mutation have accelerated lung function decline. OBJECTIVE To assess whether the 11478G→A polymorphism is associated with attenuated α(1)-antitrypsin responses at COPD exacerbation...
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